package demo513;
import  java.io.*;
public class TestFile {
    public void setData(String filename,String data) throws  IOException{
        FileWriter fileWriter  = new FileWriter (filename);
        BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
        bufferedWriter.write(data);
        bufferedWriter.close();
    }
    public void  getData (String filename){
        FileReader fileReader = null;
       try {
          fileReader =new FileReader (filename) ;
           BufferedReader reader = new BufferedReader(fileReader);
           String data;
           while((data = reader.readLine())!=null){
               System.out.println(data);
           }
       }catch (IOException e){
           throw new RuntimeException(e);
       }
       finally {
           System.out.println("不管是否发生异常都会执行finally里边的代码");
       }
       }
    }

